Water vapour permeability test principle
Answers
Water Vapour Permeability Tester, to determine the resistance of textiles and textile composites (particularly action wear fabrics) to water vapour penetration. Water vapour permeability tester consists of 8 containers with water reservoirs, a standard permeable fabric cover, sample holder ring and precision drive system.
Water vapour permeability tester should work in conditioning room or conditioning chamber. Wet-cup can be converted to do different test.
Answer: A water vapour permeability test principle is a type of device used to test water.
Explanation: The cup is sealed with the test sample, a humidity difference between inside and outside of the cup, and therefore water vapor permeates through test sample; the rate of change in cup weight is monitored to calculate transmission rate.
BTW this is my very first question I answered!